Turbine



(No ModeL) G. P. OOOLIDGB. y

TURBINB.

Patnted June 16,;18851.

ATnNr tries.

CHARLES P. COOLIDGE, OF ORANGE, MASSACHUSETTS.

TURBINE.

SPECIFICATION forming part of Letters Patent No.v319,95'7, dated Tune 16, 1885.

` Application filed May 20, 1884. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES PIERCE COOL- IDGE, of Orange, in the county of Franklin, of the Commonwealth of Massachusetts, have invented a new and useful Improvement in Turbines; and I do hereby declare the same to be described in the following specification, and represented in the accompany drawings, of which- Figure 1 is a top view, Fig. 2 a front elevation, Fig. 3 a horizontal section, and Fig. 4 a transverse section, of a turbine provided with my invention, the nature of which is defined in the claim hereinafter presented. Fig. 5 is a side view of the wheel.

In this turbine each of the guides by which the water is directed to the buckets of the wheel is tangential, or about so, to the wheel, and is movable lengthwise, all the guides being provided with mechanism for simultaneously so moving them either inwardly or outwardly. There is also to the vertical portion of each bucket of the wheel a series of angular ribs or grooves for retaining the currents of water against the buckets, or in a manner preventing them from being deflected toward the axis of the wheel, the ribs or grooves causing the water to act with better effect in revolving the wheel than would be the case were the buckets Without such grooves or ribs.

My improvement enables me to dispense with the annular gate usually employed to surround the guides, such guides by such iinprovement serving the purpose of such gate and that of guiding the water to the wheel.

ln the drawings, A represents the wheel and B itsV shaft, the latter being pivoted at its lower end to a spider, C, arranged beneath the guide-supporting frame D. The said frame D consists, principally, of two horizontal flat rings, aand b, arranged one over the other and concentrically with the wheel A, such rings having a series of vertical tubular posts, o, intervening between them and arranged at suitable distances apart. Screw-bolts d go through the rings and posts and rings, nuts e being screwed on the series of such bolts. Each ring has in it a series of grooves, f, arranged longitudinally, or about so,to the'wheel, eachgroove of one ring being directly over that of the other, and within -the two one of a series of guides or sliding gates, E. Each of such gates or guides has a link, F, pivoted to it near its upper edge and outer end, such link being extended to and pivoted to a ring, G, arranged concentrically on the frame D, and provided at its inner periphery with a curved tooth-rack, H, to engage with a pinion, I, carried by a vertical shaft, K, duly supported on the frame D, and provided with a hand-wheel, L, all being as represented. The sliding gates E are connected to the said ring G by the links F, which are pivoted to the said ring by boltsf,which pass through slots g in such ring G. By having said hand-wheel. the ring may be partially revolved, so as to cause all the guides to be wound simultaneously in their grooves either toward or away from each other, .or to close them against each other, to stop any water from flowing between them and into the wheel. By moving them outwardly they depart from each other (more or less) at their inner ends, so as to allow the water to pass between them and to and against the buckets of the wheel. These buckets are shown at k, each being straight vertically from the circular head Z of the wheel down to the top of the circumferential ring m,- thence each bucket is curved down to the lower edge of the ring. Furthermore, each bucket in its straight part and next the said ringis provided with a series of vertical grooves or ribs, as shown at m', each being, generally speaking, triangular in transverse section. They are for a purpose as hereinbefore explained.

I do not claim in a water-wheel each bucket having on its rear face or that which impinges against the water a series of inclined ribs, to operate on the water in a manner to force the wheel upward while it may be revolving, such being as shown in the United States Patent No. 172,140. In my wheel the series of grooves or ribs for each bucket is on the side of it against which the water impinges to drive the wheel, and is for aiding it in revolving the wheel; nor do I claim gates arranged in grooves tangential to the wheel and provided with mechanism for simultaneously moving them in their grooves, such being as shown in the United States Patent No. 148,341.

In my wheel each gate is connected to a rotary ring by means of a link jointed to such IOO gate and ring, and the ring encompasses the upper part of the'gate-frame. I thereby avoid having a at ring arranged on the top of such frame, and perforated with slots, and extended over the gate-frame, having like slots in its upper part, all as shown in the said Patent No. 148,341. By avoiding such I avoid the leakage of Water that necessarily takes place through such slots. By means of the bolts f and slots g the position of links F and gates E can be varied. So,when the inner ends of said gates become Worn, the gates can be adjus' ed inward, thus compensating for the wear and make a tight joint Where these inner ends Contact.

CHARLES' P. oooLIDGE.

Witnessesi ORRIN C. Dow, CHARLES T. CHASE. 

